PT90407A - TARGET PROPRIETARY TO DETECT ELECTRICALLY THE PENETRATION OF DARTS AND SIMILAR PROJECTS THAT DO NOT FULLY PENETRATE THROUGH THE TARGET - Google Patents
TARGET PROPRIETARY TO DETECT ELECTRICALLY THE PENETRATION OF DARTS AND SIMILAR PROJECTS THAT DO NOT FULLY PENETRATE THROUGH THE TARGETInfo
- Publication number
- PT90407A PT90407A PT90407A PT9040789A PT90407A PT 90407 A PT90407 A PT 90407A PT 90407 A PT90407 A PT 90407A PT 9040789 A PT9040789 A PT 9040789A PT 90407 A PT90407 A PT 90407A
- Authority
- PT
- Portugal
- Prior art keywords
- target
- darts
- penetration
- target board
- proprietary
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41J—TARGETS; TARGET RANGES; BULLET CATCHERS
- F41J5/00—Target indicating systems; Target-hit or score detecting systems
- F41J5/04—Electric hit-indicating systems; Detecting hits by actuation of electric contacts or switches
- F41J5/044—Targets having two or more electrically-conductive layers for short- circuiting by penetrating projectiles
Landscapes
- General Engineering & Computer Science (AREA)
- Engineering & Computer Science (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Toys (AREA)
- Power Steering Mechanism (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Paints Or Removers (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Detergent Compositions (AREA)
- General Induction Heating (AREA)
- Inorganic Insulating Materials (AREA)
- Holo Graphy (AREA)
- Elimination Of Static Electricity (AREA)
- Pinball Game Machines (AREA)
- Rotational Drive Of Disk (AREA)
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
- Magnetic Record Carriers (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
This invention relates to a target board for electrically sensing the penetration of darts and similar missiles that do not penetrate entirely through the target. More specifically, the invention relates to the construction of a target board that is adapted to be a sensing device to trigger an electrical scoring device not of this invention wherein an electrical trigger circuit is closed upon the impact of a pointed missile (12) partially penetrating the target board. A unique feature of this invention is that it allows the use of regulation-grade metal-pointed throwing darts of the type preferred by serious dart players, with no modifications made to the dart to accommodate the triggering of the target board circuit.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/187,215 US4852888A (en) | 1988-04-28 | 1988-04-28 | Electrically scoring dart board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PT90407A true PT90407A (en) | 1989-11-10 |
| PT90407B PT90407B (en) | 1994-05-31 |
Family
ID=22688067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PT90407A PT90407B (en) | 1988-04-28 | 1989-04-28 | TARGET PROPRIETARY TO DETECT ELECTRICALLY THE PENETRATION OF DARTS AND SIMILAR PROJECTS THAT DO NOT FULLY PENETRATE THROUGH THE TARGET |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US4852888A (en) |
| EP (1) | EP0339898B1 (en) |
| JP (1) | JPH01318898A (en) |
| CN (1) | CN1018194B (en) |
| AT (1) | ATE101708T1 (en) |
| AU (1) | AU609685B2 (en) |
| CA (1) | CA1299601C (en) |
| DE (1) | DE68913069T2 (en) |
| DK (1) | DK165805C (en) |
| FI (1) | FI892009A (en) |
| GB (1) | GB2217618B (en) |
| NO (1) | NO168915C (en) |
| NZ (1) | NZ228865A (en) |
| PT (1) | PT90407B (en) |
| ZA (1) | ZA893160B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5486007A (en) * | 1994-05-09 | 1996-01-23 | High Flyte International Ltd. | Automated dart board |
| US5531451A (en) * | 1995-04-14 | 1996-07-02 | Yiu; Chih-Hao | Scoring system for dart games |
| CN100424462C (en) * | 2001-01-16 | 2008-10-08 | 邵佳沐 | Magnetic induction type automatic score method and device for dart target |
| US20040036221A1 (en) * | 2002-08-22 | 2004-02-26 | Martinez Dan L. | Shooting target with electronic zone indicators and method of use |
| CA2417222C (en) | 2003-01-24 | 2010-07-06 | Optima Global Corporation | Electronic scoring dart board |
| JP4682986B2 (en) * | 2004-12-31 | 2011-05-11 | 株式会社セガ | Dart game machine |
| US9192837B2 (en) | 2012-09-27 | 2015-11-24 | Eastpoint Sports Ltd., Llc | Lawn dart, lawn dart caddy and target |
| CN105056503B (en) * | 2015-07-28 | 2017-09-22 | 湖南人文科技学院 | A kind of javelin mapping of training, scaling method |
| US10443987B2 (en) | 2016-04-21 | 2019-10-15 | Indian Industries, Inc. | Dartboard scoring system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3101198A (en) * | 1961-10-04 | 1963-08-20 | James E Williams | Automatically scoring dart board |
| US3275321A (en) * | 1964-01-30 | 1966-09-27 | Gerard M Forest | Target apparatus with discriminating electrical indicator, and projectiles therefor |
| CH522196A (en) * | 1969-03-27 | 1972-04-30 | Polytronic S A | Shooting target |
| US4014546A (en) * | 1975-05-29 | 1977-03-29 | Steinkamp Jeffrey H | Scoring apparatus |
| GB1532744A (en) * | 1977-05-30 | 1978-11-22 | Arachnid Inc | Dart board |
-
1988
- 1988-04-28 US US07/187,215 patent/US4852888A/en not_active Expired - Fee Related
- 1988-06-23 GB GB8814990A patent/GB2217618B/en not_active Expired - Lifetime
- 1988-07-25 CA CA000572903A patent/CA1299601C/en not_active Expired - Lifetime
-
1989
- 1989-04-24 NZ NZ228865A patent/NZ228865A/en unknown
- 1989-04-24 DE DE68913069T patent/DE68913069T2/en not_active Expired - Fee Related
- 1989-04-24 AT AT89304039T patent/ATE101708T1/en not_active IP Right Cessation
- 1989-04-24 EP EP89304039A patent/EP0339898B1/en not_active Expired - Lifetime
- 1989-04-27 FI FI892009A patent/FI892009A/en not_active IP Right Cessation
- 1989-04-27 DK DK205289A patent/DK165805C/en not_active IP Right Cessation
- 1989-04-27 AU AU33825/89A patent/AU609685B2/en not_active Ceased
- 1989-04-27 NO NO891758A patent/NO168915C/en unknown
- 1989-04-28 CN CN89103915A patent/CN1018194B/en not_active Expired
- 1989-04-28 PT PT90407A patent/PT90407B/en not_active IP Right Cessation
- 1989-04-28 ZA ZA893160A patent/ZA893160B/en unknown
- 1989-04-28 JP JP1107954A patent/JPH01318898A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DK205289D0 (en) | 1989-04-27 |
| NO168915B (en) | 1992-01-06 |
| NZ228865A (en) | 1990-12-21 |
| EP0339898B1 (en) | 1994-02-16 |
| GB8814990D0 (en) | 1988-07-27 |
| NO168915C (en) | 1992-04-15 |
| NO891758D0 (en) | 1989-04-27 |
| GB2217618A (en) | 1989-11-01 |
| ATE101708T1 (en) | 1994-03-15 |
| DK165805B (en) | 1993-01-18 |
| AU609685B2 (en) | 1991-05-02 |
| ZA893160B (en) | 1989-12-27 |
| DE68913069D1 (en) | 1994-03-24 |
| NO891758L (en) | 1989-10-30 |
| DE68913069T2 (en) | 1994-09-01 |
| EP0339898A2 (en) | 1989-11-02 |
| US4852888A (en) | 1989-08-01 |
| CN1018194B (en) | 1992-09-09 |
| CA1299601C (en) | 1992-04-28 |
| JPH01318898A (en) | 1989-12-25 |
| FI892009A0 (en) | 1989-04-27 |
| CN1037662A (en) | 1989-12-06 |
| DK165805C (en) | 1993-06-21 |
| GB2217618B (en) | 1992-01-02 |
| PT90407B (en) | 1994-05-31 |
| DK205289A (en) | 1989-10-29 |
| AU3382589A (en) | 1989-11-02 |
| EP0339898A3 (en) | 1990-11-28 |
| FI892009A (en) | 1989-10-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG3A | Patent granted, date of granting |
Effective date: 19931109 |
|
| MM3A | Annulment or lapse |
Free format text: LAPSE DUE TO NON-PAYMENT OF FEES Effective date: 19950531 |